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Official data from INPI

PROCESSO E INSTALAÇÃO DE DESTILAÇÃO DE AR

Em AnáliseInvention Patent

Application data

Number

PI8606791

Type

Invention Patent

Filing

07/09/1986

Publication

10/13/1987

Progress at the INPI

  1. Filing07/09/86
  2. Publication10/13/87
  3. Examination02/08/89
  4. Allowance01/23/90
  5. Grant08/28/90
  6. Terminated10/03/95

The patent was granted on 08/28/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 02/08/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

L'Air Liquide-Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude

FR

See this company's full portfolio

Inventors

L. B. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

85/10796 · 07/15/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

02/08/1989

RPI 955

Notificação de entrada na fase nacional - PCT

#1.3

10/13/1987

RPI 886

Anuidade - prazo legal encerrado

#18.2

10/03/1995

RPI 1296

Concessão da patente

#16.1

08/28/1990

RPI 1030

Notificação para pagamento de retribuição

#13.1

05/22/1990

RPI 1019

Deferimento

#9.1

01/23/1990

RPI 1003

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